Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC5WM callsign genealogy
Currently held by Okamura, Mark M
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by AC5WM's current licensee, walking backwards.
- OKAMURA, MARK MTXgranted 1996-07-24cancelled 2000-05-30
Successor callsigns
Callsigns held now by people who previously held AC5WM.
No current licensee on record previously held this callsign.